McGILL BIRD OBSERVATORY

WINTER POPULATION MONITORING

Week 20:  March 13-19, 2006

Welcome to the McGill Bird Observatory weekly report.  Click here for a complete listing of our archives.  Comments or questions are welcome at mbo@migrationresearch.org

PICTURE OF THE WEEK:



This apparent skating rink is the enormous 'new' single back pond, as viewed from the location
of net H1.  The flooding is so extensive that the multiple smaller ponds in this part of the property
have all been joined, with an apparent depth of at least 30 cm in even the shallowest spots.

(Photo by Marcel Gahbauer)
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Special thanks to Wildlifers in Baie D'Urfe for donating the seed to stock the feeders for MBO's Winter Monitoring Program - click here for information about the store.

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THIS WEEK

THIS WINTER

2006 TOTAL

SITE TOTAL

# birds (and species) banded

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300 (18)

127 (15)

5180 (93)

# birds (and species) repeat

--

162 (6)

83 (5)

976 (41)

# birds (and species) return

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20 (5)

19 (5)

97 (15)

# species observed

21

50

35

171

# net hours

--

148.5

82.0

6504.1

# birds banded / 100 net hours

--

202.0

154.9

79.5

Note: table does not include nocturnal banding (owls)

Bander-in-charge:  Marcel Gahbauer
Assistants:  Shawn Craik

Notes:   It was an unusually cold week for mid-March, and also very windy - so much so that it never calmed down enough for us to safely open the nets.  The only new migrants this week were a couple of flocks of Canada Geese, but they passed high overhead since the MBO ponds are still frozen completely solid.  In fact, we took this opportunity to explore the full extent of the flooding of the back pond by walking across the ice, and found that it is even greater than we had expected - the bases of many large trees are entirely submerged, and effectively the entire back corner of the property is a single large lake, with the berms on either side of it (at net lanes B and C) now only a couple of metres above the surface.  It will be a very wet spring at MBO; hopefully at least the ducks will appreciate it!

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2002- The Migration Research Foundation Inc.